use chrono::Utc;
use price_web::axum::{
    Json,
    extract::{Path, Query},
};
use price_web::{ResponseResult, res, response::Res};
use uuid::Uuid;

use super::dto::*;

/// 健康检查
pub async fn health_check() -> ResponseResult<HealthResponse> {
    let response = HealthResponse { status: "ok".to_string(), timestamp: Utc::now().to_rfc3339(), version: env!("CARGO_PKG_VERSION").to_string() };
    res!(response)
}

/// 获取扩展信息
pub async fn get_extension_info() -> ResponseResult<ExtensionInfoResponse> {
    let response = ExtensionInfoResponse {
        name: "extension-base-schema".to_string(),
        version: env!("CARGO_PKG_VERSION").to_string(),
        description: "基础项目结构扩展".to_string(),
        supported_nodes: vec!["GCXM".to_string(), "DXGC".to_string(), "DWGC".to_string()],
        capabilities: vec!["project_management".to_string(), "structure_definition".to_string(), "cost_calculation".to_string()],
    };
    res!(response)
}

// ===== 项目管理 handlers =====

/// 获取项目列表
pub async fn list_projects(Query(params): Query<PaginationQuery>) -> ResponseResult<PagedResponse<ProjectResponse>> {
    // TODO: 实现实际的数据库查询逻辑
    let mock_projects = vec![ProjectResponse {
        id: Uuid::new_v4(),
        construct_name: "示例工程项目".to_string(),
        construct_code: "PROJ001".to_string(),
        path: Some("/projects/demo".to_string()),
        bidding_type: 0,
        ss_province: Some("北京市".to_string()),
        ss_province_name: Some("北京市".to_string()),
        ss_city: Some("北京市".to_string()),
        ss_city_name: Some("北京市".to_string()),
        construction_unit: Some("示例建设单位".to_string()),
        project_overview: Some("这是一个示例工程项目".to_string()),
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    }];

    let response = PagedResponse { items: mock_projects, total: 1, page: params.page.unwrap_or(1), size: params.size.unwrap_or(20), pages: 1 };

    res!(response)
}

/// 创建项目
pub async fn create_project(Json(req): Json<CreateProjectRequest>) -> ResponseResult<ProjectResponse> {
    // TODO: 实现实际的创建逻辑
    let response = ProjectResponse {
        id: Uuid::new_v4(),
        construct_name: req.construct_name,
        construct_code: req.construct_code,
        path: req.path,
        bidding_type: req.bidding_type.unwrap_or(0),
        ss_province: req.ss_province,
        ss_province_name: req.ss_province_name,
        ss_city: req.ss_city,
        ss_city_name: req.ss_city_name,
        construction_unit: req.construction_unit,
        project_overview: req.project_overview,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 获取项目详情
pub async fn get_project(Path(id): Path<Uuid>) -> ResponseResult<ProjectResponse> {
    // TODO: 实现实际的查询逻辑
    let response = ProjectResponse {
        id,
        construct_name: "示例工程项目".to_string(),
        construct_code: "PROJ001".to_string(),
        path: Some("/projects/demo".to_string()),
        bidding_type: 0,
        ss_province: Some("北京市".to_string()),
        ss_province_name: Some("北京市".to_string()),
        ss_city: Some("北京市".to_string()),
        ss_city_name: Some("北京市".to_string()),
        construction_unit: Some("示例建设单位".to_string()),
        project_overview: Some("这是一个示例工程项目".to_string()),
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 更新项目
pub async fn update_project(
    Path(id): Path<Uuid>,
    Json(req): Json<UpdateProjectRequest>,
) -> ResponseResult<ProjectResponse> {
    // TODO: 实现实际的更新逻辑
    let response = ProjectResponse {
        id,
        construct_name: req.construct_name.unwrap_or("示例工程项目".to_string()),
        construct_code: req.construct_code.unwrap_or("PROJ001".to_string()),
        path: req.path,
        bidding_type: req.bidding_type.unwrap_or(0),
        ss_province: req.ss_province,
        ss_province_name: req.ss_province_name,
        ss_city: req.ss_city,
        ss_city_name: req.ss_city_name,
        construction_unit: req.construction_unit,
        project_overview: req.project_overview,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 删除项目
pub async fn delete_project(Path(id): Path<Uuid>) -> ResponseResult<()> {
    // TODO: 实现实际的删除逻辑
    println!("删除项目: {}", id);
    res!(())
}

/// 获取项目结构
pub async fn get_project_structure(Path(id): Path<Uuid>) -> ResponseResult<ProjectStructureResponse> {
    // TODO: 实现实际的查询逻辑
    let project = ProjectResponse {
        id,
        construct_name: "示例工程项目".to_string(),
        construct_code: "PROJ001".to_string(),
        path: Some("/projects/demo".to_string()),
        bidding_type: 0,
        ss_province: Some("北京市".to_string()),
        ss_province_name: Some("北京市".to_string()),
        ss_city: Some("北京市".to_string()),
        ss_city_name: Some("北京市".to_string()),
        construction_unit: Some("示例建设单位".to_string()),
        project_overview: Some("这是一个示例工程项目".to_string()),
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    let single_projects = vec![SingleProjectWithUnits {
        single_project: SingleProjectResponse {
            id: Uuid::new_v4(),
            project_code: "SP001".to_string(),
            project_name: "示例单项工程".to_string(),
            jzmj: Some("1000".to_string()),
            total: Some(1000000.0),
            average: Some("1000".to_string()),
            unit_cost: Some(1000.0),
            project_id: id,
            created_at: Utc::now().to_rfc3339(),
            updated_at: Utc::now().to_rfc3339(),
        },
        unit_projects: vec![UnitProjectResponse {
            id: Uuid::new_v4(),
            up_code: "UP001".to_string(),
            up_name: "示例单位工程".to_string(),
            uptotal: Some(500000.0),
            average: Some("500".to_string()),
            fbfxhj: Some(400000.0),
            csxhj: Some(100000.0),
            construct_major_type: Some("土建".to_string()),
            single_project_id: Uuid::new_v4(),
            created_at: Utc::now().to_rfc3339(),
            updated_at: Utc::now().to_rfc3339(),
        }],
    }];

    let response = ProjectStructureResponse { project, single_projects };

    res!(response)
}

/// 导出项目
pub async fn export_project(
    Path(id): Path<Uuid>,
    Json(req): Json<ExportProjectRequest>,
) -> ResponseResult<ExportResponse> {
    // TODO: 实现实际的导出逻辑
    let response = ExportResponse {
        file_url: format!("/exports/project_{}_{}.{}", id, Utc::now().timestamp(), req.format),
        file_name: format!("project_{}.{}", id, req.format),
        file_size: 1024000, // 1MB 示例
        export_time: Utc::now().to_rfc3339(),
    };

    res!(response)
}

// ===== 单项工程管理 handlers =====

/// 获取单项工程列表
pub async fn list_single_projects(Query(params): Query<PaginationQuery>) -> ResponseResult<PagedResponse<SingleProjectResponse>> {
    // TODO: 实现实际逻辑
    let mock_items = vec![];
    let response = PagedResponse { items: mock_items, total: 0, page: params.page.unwrap_or(1), size: params.size.unwrap_or(20), pages: 0 };

    res!(response)
}

/// 创建单项工程
pub async fn create_single_project(Json(req): Json<CreateSingleProjectRequest>) -> ResponseResult<SingleProjectResponse> {
    // TODO: 实现实际逻辑
    let response = SingleProjectResponse {
        id: Uuid::new_v4(),
        project_code: req.project_code,
        project_name: req.project_name,
        jzmj: req.jzmj,
        total: Some(0.0),
        average: None,
        unit_cost: Some(0.0),
        project_id: req.project_id,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 获取单项工程详情
pub async fn get_single_project(Path(id): Path<Uuid>) -> ResponseResult<SingleProjectResponse> {
    // TODO: 实现实际逻辑
    let response = SingleProjectResponse {
        id,
        project_code: "SP001".to_string(),
        project_name: "示例单项工程".to_string(),
        jzmj: Some("1000".to_string()),
        total: Some(1000000.0),
        average: Some("1000".to_string()),
        unit_cost: Some(1000.0),
        project_id: Uuid::new_v4(),
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 更新单项工程
pub async fn update_single_project(
    Path(id): Path<Uuid>,
    Json(req): Json<CreateSingleProjectRequest>,
) -> ResponseResult<SingleProjectResponse> {
    // TODO: 实现实际逻辑
    let response = SingleProjectResponse {
        id,
        project_code: req.project_code,
        project_name: req.project_name,
        jzmj: req.jzmj,
        total: Some(0.0),
        average: None,
        unit_cost: Some(0.0),
        project_id: req.project_id,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 删除单项工程
pub async fn delete_single_project(Path(id): Path<Uuid>) -> ResponseResult<()> {
    // TODO: 实现实际逻辑
    res!(())
}

/// 获取项目下的单位工程列表
pub async fn list_project_units(Path(id): Path<Uuid>) -> ResponseResult<Vec<UnitProjectResponse>> {
    // TODO: 实现实际逻辑
    let response = vec![];
    res!(response)
}

// ===== 单位工程管理 handlers =====

/// 获取单位工程列表
pub async fn list_unit_projects(Query(params): Query<PaginationQuery>) -> ResponseResult<PagedResponse<UnitProjectResponse>> {
    // TODO: 实现实际逻辑
    let mock_items = vec![];
    let response = PagedResponse { items: mock_items, total: 0, page: params.page.unwrap_or(1), size: params.size.unwrap_or(20), pages: 0 };

    res!(response)
}

/// 创建单位工程
pub async fn create_unit_project(Json(req): Json<CreateUnitProjectRequest>) -> ResponseResult<UnitProjectResponse> {
    // TODO: 实现实际逻辑
    let response = UnitProjectResponse {
        id: Uuid::new_v4(),
        up_code: req.up_code,
        up_name: req.up_name,
        uptotal: Some(0.0),
        average: req.average,
        fbfxhj: Some(0.0),
        csxhj: Some(0.0),
        construct_major_type: req.construct_major_type,
        single_project_id: req.single_project_id,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 获取单位工程详情
pub async fn get_unit_project(Path(id): Path<Uuid>) -> ResponseResult<UnitProjectResponse> {
    // TODO: 实现实际逻辑
    let response = UnitProjectResponse {
        id,
        up_code: "UP001".to_string(),
        up_name: "示例单位工程".to_string(),
        uptotal: Some(500000.0),
        average: Some("500".to_string()),
        fbfxhj: Some(400000.0),
        csxhj: Some(100000.0),
        construct_major_type: Some("土建".to_string()),
        single_project_id: Uuid::new_v4(),
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 更新单位工程
pub async fn update_unit_project(
    Path(id): Path<Uuid>,
    Json(req): Json<CreateUnitProjectRequest>,
) -> ResponseResult<UnitProjectResponse> {
    // TODO: 实现实际逻辑
    let response = UnitProjectResponse {
        id,
        up_code: req.up_code,
        up_name: req.up_name,
        uptotal: Some(0.0),
        average: req.average,
        fbfxhj: Some(0.0),
        csxhj: Some(0.0),
        construct_major_type: req.construct_major_type,
        single_project_id: req.single_project_id,
        created_at: Utc::now().to_rfc3339(),
        updated_at: Utc::now().to_rfc3339(),
    };

    res!(response)
}

/// 删除单位工程
pub async fn delete_unit_project(Path(id): Path<Uuid>) -> ResponseResult<()> {
    // TODO: 实现实际逻辑
    res!(())
}

/// 计算单位工程
pub async fn calculate_unit_project(
    Path(id): Path<Uuid>,
    Json(req): Json<CalculateUnitProjectRequest>,
) -> ResponseResult<CalculationResponse> {
    // TODO: 实现实际计算逻辑
    use std::collections::HashMap;

    let mut results = HashMap::new();
    match req.calculation_type.as_str() {
        "fbfx" => {
            results.insert("人工费".to_string(), 100000.0);
            results.insert("材料费".to_string(), 200000.0);
            results.insert("机械费".to_string(), 50000.0);
            results.insert("合计".to_string(), 350000.0);
        },
        "csxm" => {
            results.insert("安全文明施工费".to_string(), 20000.0);
            results.insert("环境保护费".to_string(), 10000.0);
            results.insert("合计".to_string(), 30000.0);
        },
        _ => {
            return res!(err "不支持的计算类型");
        },
    }

    let response =
        CalculationResponse { unit_project_id: id, calculation_type: req.calculation_type, results, calculated_at: Utc::now().to_rfc3339() };

    res!(response)
}
